Finding the Fourth Proportional to 945,891,883.70, 1,305,305,509.74 and 522,496,432.37
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Solution
The fourth proportional to 945,891,883.70, 1,305,305,509.74 and 522,496,432.37 is: 721,031,106.99
Step by Step Solution
- Step 1: Write the proportion equation
945,891,883.70 : 1,305,305,509.74 = 522,496,432.37 : x - Step 2: Convert to fraction form
945,891,883.70/1,305,305,509.74 = 522,496,432.37/x - Step 3: Cross multiply
945,891,883.70x = 1,305,305,509.74 × 522,496,432.37 - Step 4: Simplify right side
945,891,883.70x = 682,017,471,997,773,312 - Step 5: Solve for x
x = 682,017,471,997,773,312/945,891,883.70 - Step 6: Final answer
x = 721,031,106.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.